Local Calling Guide

Area code/prefix search

Search area code/prefix (NPA/NXX)
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NPA: 309 [Rate centres in NPA 309] [Dial plan for NPA 309]

NXX: 908

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
309-908 A Washburn IL PEORILPJXYX  224C ONVOY, LLC 368      
309-908 0 Washburn IL PEORILPJXMZ  624H ONVOY SPECTRUM, LLC 368   2024-05-13   
309-908 8 Washburn IL PEORILPJXYX  224C ONVOY, LLC 368   2021-12-08   

Last updated: Thu, 20 Nov 2025 13:34:34 UTC

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